2009-01-04 04:45:13 No /dev/sda in bf527 ezkit
Bill Xie (CHINA)
Message: 67328
My uClinx is uClinux-dist-2008R1-RC8 . It is not found /dev/sda.Does udev is not mount this node?
dmsg:
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
musb_hdrc: version 6.0, pio, host, debug=0
musb_hdrc: ConfigData=0x00 (UTMI-8)
musb_hdrc: hw_ep 0shared, max 64
musb_hdrc: hw_ep 1tx, max 128
musb_hdrc: hw_ep 1rx, max 128
musb_hdrc: hw_ep 2tx, max 128
musb_hdrc: hw_ep 2rx, max 128
musb_hdrc: hw_ep 3tx, max 128
musb_hdrc: hw_ep 3rx, max 128
musb_hdrc: hw_ep 4tx, max 128
musb_hdrc: hw_ep 4rx, max 128
musb_hdrc: hw_ep 5tx, max 1024
musb_hdrc: hw_ep 5rx, max 1024
musb_hdrc: hw_ep 6tx, max 1024
musb_hdrc: hw_ep 6rx, max 1024
musb_hdrc: hw_ep 7tx, max 1024
musb_hdrc: hw_ep 7rx, max 1024
musb_hdrc: USB Host mode controller at ffc03800 using PIO, IRQ 59
musb_hdrc musb_hdrc.0: MUSB HDRC host driver
drivers/usb/core/inode.c: creating file 'devices'
drivers/usb/core/inode.c: creating file '001'
musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1
usb usb1: default language 0x0409
usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: MUSB HDRC host driver
usb usb1: Manufacturer: Linux 2.6.22.18-ADI-2008R1-svn musb-hcd
usb usb1: SerialNumber: musb_hdrc.0
usb usb1: uevent
usb usb1: usb_probe_device
usb usb1: configuration #1 chosen from 1 choice
usb usb1: adding 1-0:1.0 (config #1, interface 0)
usb 1-0:1.0: uevent
usb 1-0:1.0: uevent
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: individual port power switching
hub 1-0:1.0: no over-current protection
hub 1-0:1.0: Single TT
hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
hub 1-0:1.0: power on to power good time: 10ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: enabling power on all ports
hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
drivers/usb/core/inode.c: creating file '001'
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2009-01-04 07:34:24 Re: No /dev/sda in bf527 ezkit
Mike Frysinger (UNITED STATES)
Message: 67329
udev isnt used by default, mdev is. however, that doesnt matter if the kernel isnt finding the device. in this case, no disk was found, so there is no sda to create.
that output indicates the device has a hub in it ... that wont work as usb hubs are not supported
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2009-01-04 23:58:36 Re: No /dev/sda in bf527 ezkit
Bill Xie (CHINA)
Message: 67346
Mike:
Thank you for response.But how to solve this problem?
Bill
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2009-01-05 00:07:16 Re: No /dev/sda in bf527 ezkit
Mike Frysinger (UNITED STATES)
Message: 67347
if hubs arent supported, then dont use one
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2009-01-05 02:01:23 Re: No /dev/sda in bf527 ezkit
Bill Xie (CHINA)
Message: 67349
How to config this mode?Thank you.
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2009-01-05 07:50:02 Re: No /dev/sda in bf527 ezkit
Robin Getz (UNITED STATES)
Message: 67380
Bill:
What Mike means is that USB hubs are not supported by the hardware - there is nothing to change in the software.
The only option you have is not to use a USB hub between the Blackfin and the device you want it connected to. If there is direct connection - things will work. If there is a hub inbetween - the USB controller inside the Blackfin does not support it.
If your USB device has a built in hub (like many do) - there is no way that that device will work with a Blackfin.
-Robin
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2009-01-05 20:21:01 Re: No /dev/sda in bf527 ezkit
Bill Xie (CHINA)
Message: 67397
Robin:
Thank you for your response.It is not using usb hub in my test.I use SanDisk 1G cruzer direct connection by usb cable
to bf527 ezkit usb otg .
Bill
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2009-01-05 21:59:58 Re: No /dev/sda in bf527 ezkit
Robin Getz (UNITED STATES)
Message: 67405
Bill:
What does lsusb -t show?
-Robin
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2009-01-05 23:46:18 Re: No /dev/sda in bf527 ezkit
Bill Xie (CHINA)
Message: 67408
Robin:
Thank you.Connected or not connected 1G Sandisk flash cruzer both display this message.
root:/> lsusb -t
Bus# 1
`-Dev# 1 Vendor 0x1d6b Product 0x0002
--Bill